Control.dropDown constructor

Control.dropDown({
  1. required List<String> items,
  2. required String key,
  3. String? description,
  4. String? title,
  5. int? selected,
  6. void onChange(
    1. dynamic value
    )?,
  7. Widget? prefixIcon,
})

Implementation

factory Control.dropDown({
  required List<String> items,
  required String key,
  String? description,
  String? title,
  int? selected,
  void Function(dynamic value)? onChange,
  Widget? prefixIcon,
}) {
  if (selected != null) {
    assert(selected < items.length, 'Selected exceeds item length');
    assert(selected >= 0, 'Selected must be a positive value');
  }
  return Control(
    value: {'items': items, 'selected': selected},
    type: ControlType.dropDown,
    title: title,
    description: description,
    onChange: onChange,
    key: key,
    prefixIcon: prefixIcon,
  );
}